CMI Headers vs Stainless Marine
12-06-2014, 06:05 AM
#32
Registered
The Imco power flow plus manifolds have proven to be effective up to about 1250 hp on a blower engine on the Dyno. I believe the SM gen iii's have been used up to 1400 hp from what I've been told.
12-06-2014, 12:42 PM
#34
These seem like great "header folds" Dean - and I've seen the claim from KE about power vs competition.
Thing is I'm uncertain what premier builder actually use KE headers as their go to header?
Chief
Boostpower
Teague
Merc
ILmor
Eddie
Madera
Pfaff
Zul
- as well as a litany of others that dont come to the top of my head
Although Im certain any builder would put them on if requested - It doesn't seem anybody but Eickert actually "leads" with this product and if their claims are true - I wonder why - Or do I just not see their popularity from the websites and the west coast?
UD
Thing is I'm uncertain what premier builder actually use KE headers as their go to header?
Chief
Boostpower
Teague
Merc
ILmor
Eddie
Madera
Pfaff
Zul
- as well as a litany of others that dont come to the top of my head
Although Im certain any builder would put them on if requested - It doesn't seem anybody but Eickert actually "leads" with this product and if their claims are true - I wonder why - Or do I just not see their popularity from the websites and the west coast?
UD
12-06-2014, 02:32 PM
#35
Registered
These guys? http://www.innovation-marine.com/inn...dServices.html
Looks like CMI or Stellings - right on their front page Vs KE.
Or were you adding them to the " not lead with KE" list?
DelSol-Many West Coast builder out here use the Imcos and they seem to work and last really well.
I think the leak on the outside feature(thinner outer walls than inner) - is unique to SM.
UD
12-06-2014, 06:57 PM
#36
Banned
iTrader: (9)
FWIW if I recall correctly this came out of one of Moore books. One pic has the KE exhaust manifolds cut open view design
https://www.hardin-marine.com/instru...comparison.pdf
https://www.hardin-marine.com/instru...comparison.pdf
Last edited by BUP; 12-06-2014 at 07:14 PM.
12-06-2014, 08:35 PM
#38
Platinum Member
Platinum Member
In our testing in an NA application, the CMI Sport Tubes can add maybe 15 HP at 6000+ RPM = maybe + 1 MPH.
The CMI's make some sense in racing or if bling is your primary objective. What the difference in CMI E-tops vs. SM?....nice toy!
The CMI's make some sense in racing or if bling is your primary objective. What the difference in CMI E-tops vs. SM?....nice toy!
12-07-2014, 06:52 AM
#39
Charter Member
Charter Member
I ran a pair of KE's for 8 years in salt and never had a problem. I also have a friend that lost (2) engines to SM leaking on the inside also, I think it comes down to how you take care of them. He used "salt away" when flushing, and this guy is anal about this stuff too.....Just sayin.....
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